- #1
rojak44
- 13
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sorry if i posted this in wrong section..
im having problem on where the value in the circle come from,can someone give me an answer or a hint.
TQ
Last edited:
Understanding Quality: Uncovering the Relationship between Variables
- Thread starter rojak44
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In summary, the person is having trouble determining the value in a circle and is asking for help. They mention that it should be in the engineering homework section and explain how to determine quality using entropy and temperature. They also mention finding the internal energy and how to calculate the specific volume. The person eventually figures it out and thanks the other person for their help.
sorry if i posted this in wrong section..
im having problem on where the value in the circle come from,can someone give me an answer or a hint.
TQ
- #2
Q_Goest
Science Advisor
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Hi rojak. This should be in the engineering homework section.
Anyway, do you know how to determine quality? They give you entropy and they tell you the final fluid state is saturated. From the information on entropy and temperature, you should be able to determine the quality. They don't show you how to do that in the example.
Once you have quality, you should be able to determine the internal energy. Again, they don't show you how to do that, but perhaps you can figure it out now.
- #3
rojak44
- 13
- 0
thank for the reply ^ ^
my english is not so good,here what i understand. find the quality x=(v-vf)/vfg, then substitute it in u=uf+xufg.
im confuse now.. i only have mass of 1.5kg,how do i find the specific volume?
v=V/m
V=?
- #4
rojak44
- 13
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thanks! i understand now.. s1=s2..
im using s to find the quality x=(s-sf)/sfg
i got the answer now,thank you very much!
1. How do you define quality in science?
Quality in science refers to the accuracy, reliability, and validity of research findings. It is the degree to which a study is free from bias and error, and how well it measures what it claims to measure.
2. What factors contribute to determining the quality of scientific research?
The quality of scientific research is determined by various factors, including the study design, methodology, sample size, data analysis, and the credibility of the researchers. Other factors such as funding source, conflicts of interest, and publication bias can also affect the quality of research.
3. How can we evaluate the quality of scientific evidence?
Evaluating the quality of scientific evidence involves critically analyzing the research methodology, results, and conclusions. This can be done by assessing the study design, sample size, statistical analysis, and potential sources of bias. Peer review and replication of the study by other researchers can also help determine the quality of evidence.
4. What are some common pitfalls in determining the quality of scientific research?
Some common pitfalls in determining the quality of scientific research include relying on biased or limited sources of information, lack of understanding of statistical analysis, and failure to consider potential sources of bias. It is important to critically evaluate the methodology and results of a study rather than relying solely on the conclusions.
5. How can we ensure the quality of scientific research?
To ensure the quality of scientific research, it is important to have a rigorous peer-review process, transparent reporting of methods and results, and replication of studies by other researchers. It is also essential for scientists to adhere to ethical standards and avoid conflicts of interest that could impact the quality of their research.
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